Wide-range holdfast.



I B. DAY.

WIDE RANGE HOLDPAST.

APPLIOATION FILED JUNE 2'7, 1912.

Patented May 27, 1913.

3 SHEETS-SHEET 1.

SI ewfoz B. DAY. WIDE RANGE HOLDFAST.

APPLICATION FILED JUNE 27, 1912. 1,063,017. Patented May 27, 1913.

s SHBETS-SHEET 2.

MW 7 I I I iqggomgiy COLUMBIA PLANOGRAPH 50.,WI-SHINGTON, D. c.

B. DAY.

WIDE RANGE HOLDFAST. APPLICATION FILED JUNE 27, 1912.

Y Patented Ma 27, 1913.

3 SHEETS-SHEET 3.

COLUMBIA PLANOGRAPH C0.,WASHINGTON, h. L

BENJAMIN DAY, OF SUMMIT, NEW JERSEY.

WIDE-RANGE HOLDFAST.

Specification of Letters Patent.

' Patented May 27,1913.

Application filed June 27, 1912. Serial No. 706,190.

To all whom it may concern Be it known that I, BENJAMIN DAY, a citizenof the United States, and a resident of Summit, Union county, NewJersey, have invented certain new and useful Improvements in VVide-RangeHoldfasts, of which the following is a specification.

This invention relates to film-frame apparatus, by which is meantapparatus for supporting a printing or tinting film, in relation to thestone or other surface to be shaded, in such a way as to permit ofextended movements or coarse adjustments and also micrometricadjustments of the film, to the end that the film may be carried to anyposition within the range of the machine and thereafter adjusted bymovements of small magnitude and extreme accuracy to produce apredetermined design by successive non-registering impressions.

The invention relates more particularly to the swinging arm holdfasttype of machine. This machine includes a primary supporting element,which is a weighted base which may be transported or moved about over asupporting surface and which, from a position in rear of the stone,plate or drawing to be shaded, is capable of sustaining the weight ofthe swinging arms and adjusting provisions that hold and position thefilmframe in advance of the holdfast.

An object of the invention is to provide a highly practical holdfastmachine having a wide range of movement with simplicity of constructionand convenience of operation. To this end the machine presents a novelcombination of provisions for effecting up and down adjustment byswinging movement of a forward-projecting frame or arms, fore and aftadjustment of the same, and a compound or wide-range transverseadjustment by means of successively supported carriages. These movementsmay be termed extended movements or adjustments in contradistinct-ion tothe fine or micrometric adjustments embodied in mechanism carried by thelast of these intermediate movable supports.

Another object is, in conjunction on the one hand with means foreffecting extended or approximate adjustment of the filmframe up anddown, forward and backward and from side to side, and on the other handwith means for eifecting micrometric or fine adjustment of the frameforward and backward and from side to side, to provide means for fine upand down leveling adjustment as well.

A further object of the invention is, in

conjunction with the swinging fore and aft arms or frame, to providemeans for adjusting the remainder of the parts carried thereby tocompensate for the angular displacement of these parts by the up anddown adjustment of said arms. To this end means are provided forangularly adjusting the carriage or support carried by these arms abouta transverse axis relatively thereto.

A still further object is to provide more convenient and reliable meansfor moving thefore and aft arms longitudinally without binding, forwhich purpose operating mechanism is provided for advancing orretracting the arms simultaneously.

Still another object is to provide means whereby the upward and downwardtilting arms or frame are held at any posit-ion to which they may bemoved and until locked. For this purpose a yielding or frictional brakeis employed.

Other novel features of the invent-ion will become apparent as thespecification pro ceeds and will be pointed out in the appended claims.

In the accompanying drawings illustrat ing the invention: Figure 1 is aperspective view of the machine showing a work surface in front of theholdfast on which several positions of the film are indicated by therectangles; Fig. 2 is a sectional side elevation on the line 22 of Fig.4; Fig. 3 is a central vertical section; Fig. 3 is a sectional detailview on line 8 3 of Fig. 1. Fig. i is a section on the line 4 4 of Fig.2; Fig. 5 is a detail vertical section on the line 5-5 of Fig. 6; Fig. 6is a section on the line 66 of Fig. 2; Fig. 7 is a section on the line7-7 of Fig. 6; and Fig. 8 is a fra mentary plan view of part of thebase.

The transversely-elongated weighted base of the holdfast is shown at 10and is provided at its opposite ends with standards 11. It may betransported by means of angular handle brackets 12 secured to its ends.Holders 13 are angularly adjustable on the upper parts and preferably atthe outer sides of the standards 11. These holders carry fore and aftarms 14, the said arms having extended longitudinal movement in saidholders. A transverse way-bar 15 is carried by the forward parts of thearms 14. Means for securing a wide-range adjustment of the printingfilm, transversely across the machine, is supported from the way-bar 15.As shown, a carriage 16 is movable and lockable along this way-bartransversely across the front of the machine. The said carriageconstitutes a downwardly and forwardly proj ecting support and ispreferably in the form of a plate or block having an undercut transversechannel in its rear side receiving the beveled edges or ride-ways of thewaybar 15. The locking means for the carriage may consist of a shoe 17conforming to the upper ride-way of the way-bar 15 and adapted to beclamped against it by a set screw 18, the shoe being yieldingly pressedagainst the surface of the way-bar when this screw is released by meansof a spring 19. The slide block 16 is inclined downward and forward andis preferably bifurcated in its lower part as shown. is supported inapertures in the arms of the slide block 16 and permits additionaltransverse movement of the film-frame 22. The said rod is shown as beingtransversely slidable in the slide block 16 and held from rotationtherein by means of a feather 23 held in a longitudinal V-groo-ve in therod. The

rod 21, which constitutes a simple form of wide transversely-movablecarriage as the slide block 16 constitutes a form of narrowtransverselymovable carriage, is lockable at any position relatively tothe said slide block, as by means of a clamping screw 24 threadedintothe block 16 and bearing at its opposite end against the side of therod.

Suitable micrometric hinge devices 25 and 26 are mounted on the ends ofthe rod 21 and are thus supported from the lower part of the carriage16. They embody provisions for tiltably supporting the film-frame sothat it may be swung up to expose the work and for micrometricallyadjusting it forward and backward and transversely. These micrometrichinge devices are not illustrated with particularity, but theconstruction shown in my prior Patent 813,867 of February 27, 1906, orin one of my copending applications may be used. The devices havesupports 27, 28, which are slipped onto the ends of the rod 21 and aresecured in the desired position by set screws 29 and 30. Pintles 31, 32detachably and pivotally support a suitable film-frame holder or clamp33 which has sockets in its ends re ceiving the points of these pintles.The pintles are adjusted forward and backward by micrometer screwshaving operating heads 34, 35, and transversely of the machine by amicrometer screw having an operating head 36, the same acting directlyupon the right-hand pintle 31, the left-hand A transverse rod 21' pintle32 being sustained by a spring, not shown, so that this pintle by virtueof the connection afforded by the film-frame holder 33 partakes of thetransverse adjusting movements of the right-hand pintle 31. By theforegoing instrumentalities means are provided for supporting thefilnrframe 22 from the ends of the rod 21. It may be noted that inaddition to the rectilinear forward and backward and transversemicro-metric adjustments of the film-frame, micrometric angulardisplacements may be effected by operating one of the fore and aftadjusters 34 and 35 and not the other, or by operating them in oppositedirections or to different extents. Extended adjustment or movement ofthe film-frame with its film is effected by sliding the fore and aftarms 14 in their holders, and a wide range of lateral movement isafforded by sliding the carriage 16 on the way-bar 15 and the carriageor rod 21 in the carriage 16. The film-frame is adjusted to diflerentheights by swinging the fore and aft arms 14 and their holders 13.

Since the angular up and down movement of the fore and aft arms 14 wouldtilt the parts carried thereby and in particular the micrometric devices25, 26, means are provided for effecting a compensating angular orrotary adjustment of such parts. In the preferred construction theway-bar or guide rod 15 is angularly adjustable about a transverse axisrelatively to the fore and aft rods 14. In the specific embodiment whichis considered preferable, angular supports 37 are secured at the innerand upper sides of the forward parts of the arms or bars 14, these barsbeing connected by a cross-bar 38 which unites the fore and aft arms toform a rigid frame. The ends of the way-bar 15 have shaft extensions 39,see Fig. 6, which receive the points of pivot screws 40 that passthrough the arms 14 and the supports 37. At one or both ends of theway-bar the shaft extensions 39 carry worm wheels 41 which are engagedby operating worms 42 having knurled heads 43. The said worms arejournaled in bearing blocks 44, which are movable to adjust the wormrelatively to the worm wheel, so as to insure perfect engagement. Asshown more particularly in Figs. 5 and 6, each of the said blocks 44 issecured against the inner face of the support 37 by means of a headedscrew 45, which passes through a slotted opening in the block and isthreaded onto the said support. The blocks 44 are provided withlongitudinal slots which receive projections 46 on the supports 37 toinsure rectilinear movement of the blocks; and are adjusted toward theworm wheels 41 by means of headless screws 47 contained within threadedopenings in the supports 37. Plugs 48 inserted in the rear ends of theseopenings protect the screws 47 from tampering. The blocks 44 may belocked at the desired adjustment by ightening the screws 45.

It will be apparent that the worm and worm wheel 42, 41 constitute meansfor e'ffecting fine up and down adjustment of the hinge supports for thefilm-frame, so as to level the latter accurately with reference to thesurface of the work.

Means are provided for simultaneously and equally adjusting the fore andaft arms 14 in longitudinal directions. Such means may be widely varied.In the particular construction illustrated the arms 14 are in the natureof rack bars having rack teeth 49 formed on their under sides to meshwith gears 50 housed in chambers in the interiors of holders 13. Thesegears 50 are concentric to the axis about which the said holders areangularly adjustable. Common operating means are provided for turningthe gears 50 to drive both rack bars in the same direction. To this endboth gears are fixed to a transverse operating shaft 51, which hasbearings in the standards 11 and also in intermediate standards 52 andbetween which latter it carries an operating handle or grip 58. Thegears 50 are preferably provided with hubs 54 which are ournaled inbearing openings in the opposite side walls of the holders 13.

Means are preferably provided for pressing the rack bars 14 against thegears 50. For this purpose shoes 55 are housed inre cesses in the upperparts of the holders 13 and are provided with knife edges which areforced into V-shaped grooves in the tops of the rack bars by means ofsprings 56. Set

' screws 57 afford means for locking the rack bars to the gears 50 so asto hold the fore or aft arms or rack bars at the desired longitudinaladjustment.

Means are provided for holding the holders at any angular position towhich they may be moved, and for yieldingly checking their descent. Tothis end the said holders may be provided with depending sector wings 58having arcuate slots 59 formed therein for the reception of stud bolts60 carried by the end standards 11. The outer sides of these wings 58constitute friction surfaces with which cooperate friction members 61mounted loosely on the stud bolts 60 and pressed against the wings bymeans of coiled springs 62, interposed between the said members 61 andchambered nuts 63 screwed onto the bolts. By tightening the nuts 68 theholders 13 may be locked against movement. The bolts 60 may have reducedleft-hand threaded ends 64 bearing nuts 65 to limit the movement of thenuts 63.

The whole apparatus may be shifted angularly about a vertical aXis whichis established by a pivot 66 passing through a bear ingopening in thecentral part and toward the rear of the base 10. This pivot carries awood screw 67 at its lower end for penetrating the underlying base. Apointer 68 is fixed to the said pivot by means of a set screw 69 andcooperates with a curved scale 70 mounted on the base.

.Vhat is claimed as new is:

1. In a film-frame apparatus of the hold fast type, the combination of amovable holdfast having a weighted base and standard rising therefrom,fore and aft arms and means supporting them to swing up and down on saidstandards, means for effecting wide-range adjustment across the front ofthe machine, comprising a laterally adjustable carriage carried by saidarms and a second laterally adjustable carriage mounted on the first,and mechanism carried by said second carriage for tiltably supportingand .micrometrically adjusting a film-frame.

2. In a film-frame apparatus of the holdfast type, the combination of amovable holdfast having a weighted base and standards rising therefrom,holders angularly adjustable on said standards, fore and aft projectablearms carried by said holders to swing up and down therewith, atransverse way-bar carried by the forward parts of said arms, a carriagemounted to have extended movement along said way-bar, a rod havingextended movement in the samedirections in said carriage, and means forsupporting a film-frame from 'the ends of said rod.

8. In a film-frame apparatus of the holdfast type, the combination of amovable holdfast having a weighted base and stand ards rising therefrom,holders angularly adj ustable on said standards, fore and aft armshaving extended longitudinal movement in holders and up and downswinging movement therewith, a transverse way-bar carried by the forwardparts of said arms, a

carriage, mounted between the ends of said way bar and movable from endto end thereof, a transverse rod supported by said carriage, and ahinged film-frame holder supported by said rod for extended transversemovement relative to said carriage.

4. In a film-frameapparatus of the holdfast type,the combination of amovable holdfast having a weighted base and standards rising therefrom,fore and aft arms and means for supporting the same from said standardsfor up and down swinging movement, a transverse member carried by theforward parts of said arms, means for angularly adjusting said memberabout a transverse axis relatively to said arms, and mechanism supportedfrom said member for bold ing and micrometrically adjusting a filmframe.

5. In a film-frame apparatus of the holdfast type, the combination of aholdfast having standards, foreand aft arms and means supporting thesame from said standards for up and down swinging movement, a downwardand forward extending support carried by said arms, means for angularlyadjusting said support about a trans verse axis relatively tosaid arms,and micrometric hinge devices supported from the lower part of saidsupport.

6. In a film-frame apparatus of the hold fast type, the combination of aholdfast having standards, fore and aft arms and means supporting thesame from said standards for up and down swinging movement, a.transverse way-bar carried by the forward parts of said arms, means foradjusting said way-bar angularly about a transverse axis relatively tosaid arms, a carriage mounted for extended transverse movement alongsaid way-bar, a second carriage mounted for extended transverse movementon the first, and suitable mechanism for holding and micrometricallyadjusting a film-frame from said second carriage.

7. In a film-frame apparatus of the holdfast type, the combination of aholdfast having standards, fore and aft arms and means supporting thesame from said standards for up and down swinging movement, a transversebar uniting the forward parts of said arms, a transverse support carriedby said arms, means for rotatably adjusting said support, and suitablemicrometricallyadjustable film-frame hinge mechanism carried by saidsupport.

8. In a. film-frame apparatus of the holdfast type, a weighted holdfasthaving stand ards, a forward-projecting frame supported to swing up anddown by said standards, asupport mounted on the forward part of saidframe for angular adjustment about a transverse axis relatively to theframe, a gear fixed to said support, and a meshing gear and means foroperating the same carried by said frame, in combination with a suitablefilm-frame holder and micrometric adjusting mechanism between saidfilm-frame holder and said support.

9. In a film-frame apparatus of the holdfast type, a weighted holdfasthaving standards, a forward-projecting frame supported to swing up anddown by said standards, a transverse support rotatably mounted on theforward part of said frame, a worm wheel fixed to said support, anadjustable bearing block mounted on said frame, a worm ournaled therein,and means for adjusting said bearing block relatively to said wormwheel, in combination with suitable film-frame holding and micrometricadjusting mechanism supported from said support.

10. In a filmframe apparatus of the holdfast type, a weighted holdfastcomprising a base with standards, laterally-spaced fore and aft armsmounted on said standards, and means for simultaneously and equallymoving said arms longitudinally, in

combination With suitable film-frame holding and micrometric adjustingmechanism supported from said rods.

11. In a film-frame apparatus of the holdfast type, a holdfast,laterally-spaced fore and aft arms mounted thereon and carrying racks,gears carried by the holdfast to drive said racks, and a commontransverse operating shaft connecting said gears, in combination with asuitable film-frame holder and intermediate supports.

12. In a film-frame apparatus of the holdfast type, a holdfast withstandards, chambered holders supported for angular adjustment by saidstandards, fore and aft arms slidable through said holders and carryingracks, gears in said chambered holders to drive said racks, andoperating means for rotating said gears, in combina tion with a suitablefilm-frame holder and intermediate supports.

13. In a film-frame apparatus of the holdfast type, a holdfast,laterally-spaced fore and aft arms mounted thereon and carrying racks,and gears mounted on the holdfast to drive said racks, in combinationwith a transverse member carried by said arms, a film-frame holder, andsuitable intermediate supporting and adjusting parts between saidfilm-frame holder and said transverse member.

14. In a film-frame apparatus of the holdfast type, a holdfast,laterally-spaced fore and aft arms mounted thereon and carrying-racks,gears to drive said racks, a common transverse operating shaft for saidgears, and a handle on said shaft, in combination with a suitablefilm-frame holder and connections between the same and said arms.

15. A holdfast comprising a weighted base with end standards andintermediate standards, a transverse operating shaft passing throughsaid standards, holders carried by the holdfast at the end standards andangularly adjustable about axes coincident with the axis of said shaft,fore and aft rack bars carried by said holders, and gears on said shaftengaging said rack bars, in combination with a suitable film-frameholder and connections between the same and said rack bars.

16. A holdfast having a weighted base and standards rising therefrom,fore and aft rack bars mounted on said standards, gears to drive saidrack bars, and springs for pressing said rack bars against the gears, incombination with a suitable film-frame holder and connections betweenthe same and said rack bars.

17 A holdfast, a weighted base and standards rising therefrom, fore andaft rack bars mounted on said standards, gears to drive said rack bars,and means for locking said rack bars to the gears, in combination with asuitable film-frame holder and connections between the same and saidrack bars.

18. A holdfast having end supports, gears therein, fore and aft rackbars slidable in said supports and having longitudinal grooves in theirsides remote from the gears, shoes in said supports, springs pressingthe same into said grooves, and locking screws for forcing said shoesagainst the rack bars, in combination with suitable micrometricfilm-frame adjusting mechanism and connections between the same and saidrack bars.

19. A holdfast having standards, angularly adjustable holders supportedby said standards, fore and aft arms carried by said holders to swing upand down therewith, and a spring pressed frictional braking means andlock cooperating with said holders, so as to check the descent of saidarms or look them in adjusted positions, in combination with suitablefilm-frame holding means and micrometric connections between the sameand said arms.

20. A holdfast having standards, angularly adjustable holders supportedby said standards and one of which is provided with an arcuate slot, astud bolt on the standard passing through said slot, a frie tion memberon said stud bolt contacting with a cooperating surface on said holder,a nut threaded on said bolt, and constructed to force said frictionmember against said holder and a spring interposed between said nut andfriction member whereby the spring may automatically check the descentof said arms and said nut may look it inposition, in combination withsuitable film-frame holding means and micrometric connections betweenthe same and said arms.

21. A. holdfast having standards, fore and aft arms and means supportingthe same from the standards for up and down swinging movement, acombined spring pressed brake and lock including two members one ofwhich may be either spring pressed against said support-ing means so asto check the descent of said arms or may be locked against said holderby the other member of the look so as to maintain said arms in theiradjusted positions in combination with suitable film-frame holding meansand micrometric connections between the same and said arms.

22. In a filmframe apparatus, the combination of a base, holders carriedthereby, fore and aft arms having extended longitudinal adjustment insaid holders, said holders being adjustable relatively to the base toeffect extended up and down adjustment of said arms, a carriage carriedby and having extended transverse adjustment relatively to said arms,film-frame pintles supported from said carriage, mechanism for effectingmicrometric horizontal adjustments of said pintles, and means wherebyafine up and down adjustment thereof may be effected.

28. In a film-frame apparatus, the combination of a base, pintles forhingedly supporting a film-frame, means including swinging arms foreffecting an angular rough up and down'adjustment of said pintles, andmeans for effecting an angular fine up and down adjustment thereof.

24. In a film-frame apparatus, the combination with a base, of hingesupports for a filmframe, angularly adjustable arms for raising andlowering said supports relatively to the base, means for moving themforward and backward, and means for effecting fine angular up and downadjustment thereof.

25. In a film-frame apparatus, the combination of a holdfast havingstandards, tiltable housings at opposite ends of the holdfast, anoperating shaft rotatable in said standards and in said housings, gearsin the housings fixed to the ends of said shaft, a central operatinghandle on the shaft, rack bars slidable in said housings and meshed bysaid gears, and suitable micrometric filmframe holding and adjustingmechanism supported from said rack bars in front of the holdfast.

26. In a film-frame apparatus, the combination of a holdfast havingstandards, tiltable housings at opposite ends of the hold fast, anoperating shaft rotatable in said standards and in said housings, gearsin the housings fixed to the ends of said shaft, a central operatinghandle on the shaft, rack bars slidable in said housings and meshed bysaid gears, means for locking said housings to the standards at anyangular position, and suitable micromet-ric filmframe holding andadjusting mechanism supported fro-m said rack bars in front of theholdfast.

27. In a filmframe apparatus, the combination of a holdfast havingstandards, holders tiltably supported by said standards, fore and aftarms slidable in and tiltable with said holders, a cross bar uniting theforward parts of said arms to form a frame, a way-bar rotatablysupported by the forward part of said frame, means for angularlyadjusting and holding said way-bar, a carriage slidable thereon acrossthe frontof the machine, and suitable micrometric film-frame adjustingmechanism supported from said carriage. I

28. In a film-frame apparatus, the combination of a holdfast having endand intermediate standards, an operating shaft journaled in saidstandards and projecting beyond the end standards, a handle on the shaftbetween the intermediate standards, tiltable housings outside the endstandards and provided with areuate slots the ends of said shaft beingrotatable in said housings, studs projecting outward from said endstandards through said arcuate slots, means on said studs for holdingsaid holders at any desired angular adjustment, gears on the ends ofsaid shaft inside said housings, fore and aft rack bars slidable throughsaid housings and meshed by said gears,

10 spring means in the housings to urge the rack bars into close contactwith the gears, and means for locking said rack bars at any desiredlongitudinal adjustment.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

BENJAMIN DAY. -Witnesses NEIL GRADY, XVILLIAM SHELTON.

Copies of this patent may be obtained for five cents each, by addressing.the Commissioner of Iatents. Washington, 1. C.

